287 lines
8.3 KiB
C
287 lines
8.3 KiB
C
/*
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* Copyright (c) 1999, M. Warner Losh.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* This file contains various kludges to allow the legacy pccard system to
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* work in the newbus system until the pccard system can be converted
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* wholesale to newbus. As that is a while off, I'm providing this glue to
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* allow newbus drivers to have pccard attachments.
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*
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* We do *NOT* implement ISA ivars at all. We are not an isa bus, and drivers
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* that abuse isa_{set,get}_* must be fixed in order to work with pccard.
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* We use ivars for something else anyway, so it becomes fairly awkward
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* to do so.
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*
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* Here's a summary of the glue that we do to make things work.
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*
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* First, we have pccard node in the device and driver trees. The pccard
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* device lives in the instance tree attached to the nexus. The pccard
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* attachments will be attached to that node. This allows one to pass things
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* up the tree that terminates at the nexus, like other buses. The pccard
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* code will create a device instance for each of the drivers that are to
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* be attached.
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*
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* These compatibility nodes are called pccnbk. PCCard New Bus Kludge.
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*/
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#include "opt_bus.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/malloc.h>
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#include <sys/module.h>
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#include <sys/kernel.h>
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#include <sys/queue.h>
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#include <sys/select.h>
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#include <sys/types.h>
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#include <sys/bus.h>
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#include <machine/bus.h>
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#include <sys/rman.h>
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#include <machine/resource.h>
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#include <i386/isa/isa_device.h>
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#include <pccard/cardinfo.h>
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#include <pccard/slot.h>
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#include <pccard/pccard_nbk.h>
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devclass_t pccard_devclass;
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#define PCCARD_NPORT 2
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#define PCCARD_NMEM 5
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#define PCCARD_NIRQ 1
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#define PCCARD_NDRQ 0
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static int
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pccard_probe(device_t dev)
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{
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device_set_desc(dev, "PC Card bus -- kludge version");
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return 0;
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}
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static void
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pccard_print_resources(struct resource_list *rl, const char *name, int type,
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int count, const char *format)
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{
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struct resource_list_entry *rle;
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int printed;
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int i;
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printed = 0;
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for (i = 0; i < count; i++) {
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rle = resource_list_find(rl, type, i);
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if (rle) {
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if (printed == 0)
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printf(" %s ", name);
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else if (printed > 0)
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printf(",");
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printed++;
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printf(format, rle->start);
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if (rle->count > 1) {
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printf("-");
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printf(format, rle->start + rle->count - 1);
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}
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} else if (i > 3) {
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/* check the first few regardless */
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break;
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}
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}
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}
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static int
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pccard_print_child(device_t dev, device_t child)
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{
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struct pccard_devinfo *devi = device_get_ivars(child);
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struct resource_list *rl = &devi->resources;
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int retval = 0;
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retval += bus_print_child_header(dev, child);
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retval += printf(" at");
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if (devi) {
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pccard_print_resources(rl, "port", SYS_RES_IOPORT,
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PCCARD_NPORT, "%#lx");
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pccard_print_resources(rl, "iomem", SYS_RES_MEMORY,
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PCCARD_NMEM, "%#lx");
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pccard_print_resources(rl, "irq", SYS_RES_IRQ, PCCARD_NIRQ,
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"%ld");
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pccard_print_resources(rl, "drq", SYS_RES_DRQ, PCCARD_NDRQ,
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"%ld");
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retval += printf(" slot %d", devi->slt->slotnum);
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}
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retval += bus_print_child_footer(dev, child);
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return (retval);
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}
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static int
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pccard_set_resource(device_t dev, device_t child, int type, int rid,
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u_long start, u_long count)
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{
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struct pccard_devinfo *devi = device_get_ivars(child);
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struct resource_list *rl = &devi->resources;
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if (type != SYS_RES_IOPORT && type != SYS_RES_MEMORY
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&& type != SYS_RES_IRQ && type != SYS_RES_DRQ)
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return EINVAL;
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if (rid < 0)
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return EINVAL;
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if (type == SYS_RES_IOPORT && rid >= PCCARD_NPORT)
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return EINVAL;
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if (type == SYS_RES_MEMORY && rid >= PCCARD_NMEM)
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return EINVAL;
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if (type == SYS_RES_IRQ && rid >= PCCARD_NIRQ)
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return EINVAL;
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if (type == SYS_RES_DRQ && rid >= PCCARD_NDRQ)
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return EINVAL;
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resource_list_add(rl, type, rid, start, start + count - 1, count);
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return 0;
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}
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static int
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pccard_get_resource(device_t dev, device_t child, int type, int rid,
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u_long *startp, u_long *countp)
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{
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struct pccard_devinfo *devi = device_get_ivars(child);
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struct resource_list *rl = &devi->resources;
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struct resource_list_entry *rle;
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rle = resource_list_find(rl, type, rid);
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if (!rle)
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return ENOENT;
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if (startp)
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*startp = rle->start;
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if (countp)
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*countp = rle->count;
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return 0;
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}
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static void
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pccard_delete_resource(device_t dev, device_t child, int type, int rid)
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{
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struct pccard_devinfo *devi = device_get_ivars(child);
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struct resource_list *rl = &devi->resources;
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resource_list_delete(rl, type, rid);
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}
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static struct resource *
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pccard_alloc_resource(device_t bus, device_t child, int type, int *rid,
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u_long start, u_long end, u_long count, u_int flags)
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{
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/*
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* Consider adding a resource definition. We allow rid 0 for
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* irq, 0-3 for memory and 0-1 for ports
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*/
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int passthrough = (device_get_parent(child) != bus);
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int isdefault = (start == 0UL && end == ~0UL);
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struct pccard_devinfo *devi = device_get_ivars(child);
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struct resource_list *rl = &devi->resources;
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struct resource_list_entry *rle;
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if (!passthrough && !isdefault) {
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rle = resource_list_find(rl, type, *rid);
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if (!rle) {
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if (*rid < 0)
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return 0;
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switch (type) {
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case SYS_RES_IRQ:
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if (*rid >= PCCARD_NIRQ)
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return 0;
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break;
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case SYS_RES_DRQ:
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if (*rid >= PCCARD_NDRQ)
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return 0;
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break;
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case SYS_RES_MEMORY:
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if (*rid >= PCCARD_NMEM)
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return 0;
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break;
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case SYS_RES_IOPORT:
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if (*rid >= PCCARD_NPORT)
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return 0;
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break;
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default:
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return 0;
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}
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resource_list_add(rl, type, *rid, start, end, count);
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}
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}
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return resource_list_alloc(rl, bus, child, type, rid,
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start, end, count, flags);
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}
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static int
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pccard_release_resource(device_t bus, device_t child, int type, int rid,
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struct resource *r)
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{
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struct pccard_devinfo *devi = device_get_ivars(child);
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struct resource_list *rl = &devi->resources;
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return resource_list_release(rl, bus, child, type, rid, r);
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}
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static device_method_t pccard_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, pccard_probe),
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DEVMETHOD(device_attach, bus_generic_attach),
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DEVMETHOD(device_shutdown, bus_generic_shutdown),
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DEVMETHOD(device_suspend, bus_generic_suspend),
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DEVMETHOD(device_resume, bus_generic_resume),
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/* Bus interface */
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DEVMETHOD(bus_print_child, pccard_print_child),
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DEVMETHOD(bus_driver_added, bus_generic_driver_added),
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DEVMETHOD(bus_alloc_resource, pccard_alloc_resource),
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DEVMETHOD(bus_release_resource, pccard_release_resource),
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DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
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DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
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DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
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DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
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DEVMETHOD(bus_set_resource, pccard_set_resource),
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DEVMETHOD(bus_get_resource, pccard_get_resource),
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DEVMETHOD(bus_delete_resource, pccard_delete_resource),
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{ 0, 0 }
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};
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static driver_t pccard_driver = {
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"pccard",
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pccard_methods,
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1, /* no softc */
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};
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DRIVER_MODULE(pccard, pcic, pccard_driver, pccard_devclass, 0, 0);
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DRIVER_MODULE(pccard, pc98pcic, pccard_driver, pccard_devclass, 0, 0);
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DRIVER_MODULE(pccard, cbb, pccard_driver, pccard_devclass, 0, 0);
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